我正在制作国际象棋时钟,但在其中我需要一个延迟(就像它在计数前等待10秒)。我使用了Handler,但是如果在10秒内点击按钮,则没有任何反应。请帮忙!谢谢! 我的代码:
mHandler.postDelayed(new Runnable() {
public void run() {
// count down timer start
timer2 = new CountDownTimer(totalSeconds, Integer.parseInt(delay.getText().toString())) {
public void onTick(long millisUntilFinished) {
secondsTimer = (int) (millisUntilFinished / 1000) % 60;
minutesTimer = (int) ((millisUntilFinished / (1000 * 60)) % 60);
hoursTimer = (int) ((millisUntilFinished / (1000 * 60 * 60)) % 24);
person2.setText(hoursTimer + ":" + minutesTimer + ":" + secondsTimer);
}
public void onFinish() {
person2.setText("Time Up!");
person2.setBackgroundColor(Color.RED);
mp.start();
}
}.start();
}
}, finalDelay);
我想要延迟,但我不想锁定用户界面并让应用程序无响应,因为它现在正在使用处理程序。任何帮助将不胜感激!提前谢谢!
答案 0 :(得分:3)
我认为你不应该将CountdownTimer放入Handler。你可以创建2个处理程序。这是一个例子。
// using map function
var m = gillFamily.map(function(a) {
// check if 20 is less than age of the person
// if so then delete the age key
20 < a.age && delete a.age;
return a // return the object
});
console.log(m);
答案 1 :(得分:0)
如果您想立即启动计时器,
findViewById(R.id.button).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
new Handler().post(new Runnable() {
public void run() {
// count down timer start
new CountDownTimer(100000, 1000) {
public void onTick(long millisUntilFinished) {
button.setText(String.valueOf(millisUntilFinished));
}
public void onFinish() {
button.setText("Time Up!");
}
}.start();
}
});
}
});
如果你想在一段时间后执行它,那么
findViewById(R.id.button).setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
new Handler().postDelayed(new Runnable() {
public void run() {
// count down timer start
new CountDownTimer(100000, 1000) {
public void onTick(long millisUntilFinished) {
button.setText(String.valueOf(millisUntilFinished));
}
public void onFinish() {
button.setText("Time Up!");
}
}.start();
}
}, 1000);
}
});
答案 2 :(得分:0)
您可以避免立即使用Handler
启动计时器
private fun start10SecondsDelayTimer() {
var delayCount = 10
val timer = object : CountDownTimer(1_000_000L, 1000L) {
override fun onTick(millisUntilFinished: Long) {
if (delayCount > 0) {
delayCount--
} else {
//your calculations
}
}
override fun onFinish() {
//some calculations
}
}
timer.start()
}
但是第一个刻度不会进行计算